Recent results on iteration theory: iteration groups and semigroups in the real case

MC Zdun, P Solarz - Aequationes mathematicae, 2014 - Springer
In this survey paper we present some recent results in the iteration theory. Mainly, we focus
on the problems concerning real iteration groups (flows) and semigroups (semiflows) such …

Non-monotonic iterative roots extended from characteristic intervals

L Liu, W Zhang - Journal of mathematical analysis and applications, 2011 - Elsevier
It has been treated as a difficult problem to find iterative roots of non-monotonic functions.
For some PM functions which do not increase the number of forts under iteration a method …

Open question on lower order iterative roots for PM functions

L Liu, L Li, W Zhang - Journal of Difference Equations and …, 2018 - Taylor & Francis
It is known that any PM function of nonmonotonicity height> 1 has no continuous iterative
roots of an order n being greater than the number of forts of the function, from which there …

Iterative square roots of functions

BVR BHAT, C Gopalakrishna - Ergodic Theory and Dynamical …, 2023 - cambridge.org
An iterative square root of a self-map f is a self-map g such that. We obtain new
characterizations for detecting the non-existence of such square roots for self-maps on …

Iterative roots of two-dimensional mappings

Z Yu, L Li, J Matkowski - Proceedings of the Edinburgh Mathematical …, 2023 - cambridge.org
As a weak version of embedding flow, the problem of iterative roots is studied extensively in
one dimension, especially in monotone case. There are few results in high dimensions …

On fractional iterates of a Brouwer homeomorphism embeddable in a flow

Z Leśniak - Journal of mathematical analysis and applications, 2010 - Elsevier
We present a method for finding continuous (and consequently homeomorphic) orientation
preserving iterative roots of a Brouwer homeomorphism which is embeddable in a flow. To …

Local C1 stability versus global C1 unstability for iterative roots

W Zhang, Y Zeng, W Jarczyk, W Zhang - Journal of Mathematical Analysis …, 2012 - Elsevier
Stability of iterative roots is important in the numerical computation of iterative roots. Known
results show that under some conditions iterative roots of strictly monotonic self-mappings …

[PDF][PDF] 一维映射迭代根的非单调性及光滑性

刘鎏, 余志恒, 曾莹莹, 张伟年 - 中国科学: 数学, 2021 - researchgate.net
摘要迭代根问题是动力系统嵌入流问题的弱问题, 是动态插值方法的基础. 然而,
即使是对一维映射, 迭代根的非单调性和全局光滑性都是困难的问题. 本文介绍这方面的若干新 …

Extension of iterative roots

YG Shi, L Chen - Aequationes mathematicae, 2015 - Springer
This paper gives a purely set-theoretical extension theorem on iterative roots, which
generalizes the results about PM functions by Zhang and his collaborators. Applying this …

Iterative roots of exclusive multifunctions

L Liu, L Li, W Zhang - Journal of Difference Equations and …, 2021 - Taylor & Francis
In this paper, we investigate iterative roots of strictly monotone upper semi-continuous
multifunctions having finitely many jumps. Known results are concerning roots of order 2 for …